250-Type Main Unit plastic pelletizing machine | High-Wear-Resistant Low-Noise Plastic Recycling Granulation Equipment
This 250-type main unit plastic pelletizing machine is the core main equipment in the industrial plastic recycling field, specially designed for waste plastic recycled granulation processing. With thickened wear-resistant accessories, low-noise transmission system and intelligent heating configuration, it thoroughly solves industry pain points of traditional granulating equipment including fast wear, loud noise, uneven heating and insufficient output. It is widely adapted to recycling processing of industrial and agricultural waste plastics, packaging plastics and plastic scraps, helping enterprises realize efficient plastic waste resource utilization and meet current environmental recycling and compliant production demands.
As a high-performance plastic pelletizing machine , it is designed in strict accordance with industrial-grade production standards and EU PPWR Packaging and Packaging Waste Regulation, implementing the core principle of “Design for Recycling”. It can stably produce high-purity and high-quality recycled plastic granules, reaching EU recyclability Grade A/B/C standards and meeting domestic and foreign recycled plastic raw material access specifications. Having passed third-party mechanical performance test, its whole-machine transmission stability, wear resistance life and heating energy efficiency are all up to standard. It adapts to standardized large-scale production of small and medium-sized plastic recycling factories, effectively reducing enterprise production costs and improving waste recycling added value.
Core Product Features
- Ultra-strong wear-resistant material configuration with doubled service life: Core components adopt high-grade steel high-frequency heat treatment process. The screw is 250mm in diameter and 4200mm in length, made of 40CR material via high-frequency quenching treatment, with wear-resistant alloy protection added at the feeding port to eliminate feeding wear and material blockage in long-term operation. The barrel is made of 45# steel high-frequency treated material with 325mm diameter and 4200mm length, high-temperature resistant and corrosion resistant, adapting to high-load continuous production. The service life of accessories is increased by more than 40% compared with ordinary granulating equipment.
- Dual reducer matching for low-noise and stable transmission: Adopts dual-stage hard-tooth surface transmission system. The main feeding unit is equipped with a 200-type reducer with thickened feeding teeth and a dedicated 22KW motor for accurate constant feeding and sufficient power. The core body transmission adopts a 375-type hard-tooth surface low-noise reducer with precise gear meshing and low transmission loss. The operating noise is lower than 75 decibels, far below industry standards to ensure compliant workshop production, eliminating slipping, shaft breakage and transmission jamming faults.
- Segmented intelligent heating for energy-saving and efficient melting: Adopts split heating system. The main machine is equipped with 4 sets of 80KW electromagnetic heating modules, and the secondary machine is equipped with 3 sets of 60KW heating rings for independent zoned temperature control. It features fast heating and uniform temperature, which can accurately match melting temperature demands of different plastics such as PE, PP and ABS. Its heat conversion rate reaches 92%, saving 30% power compared with traditional resistance heating, effectively avoiding local plastic scorching, granule color difference and excessive impurities.
- Thickened frame structure for stable and durable operation: The whole frame is welded with thickened channel steel, matched with a 110KW high-power main motor, featuring strong bearing capacity and anti-vibration performance. It runs without shaking or offset at high speed, supporting 24-hour non-stop continuous operation with extremely low equipment failure rate, greatly reducing shutdown maintenance time and guaranteeing efficient production line operation.
- Compliant production design adapting to export standards: The whole process conforms to EU PPWR plastic recycling regulations. The finished recycled granules meet the 2030 EU market access requirement of recyclability ≥70%, with qualified purity and uniformity, adapting to domestic and foreign trade recycled raw material supply scenarios.
Detailed Technical Parameters
| Equipment Configuration Item | Detailed Parameters |
| Equipment Model | 250-Type Main Unit plastic pelletizing machine |
| Main Feeding Reducer | 200-type Hard-Tooth Surface Reducer With Thickened Feeding Teeth |
| Feeding Motor Power | 22KW |
| Main Transmission Reducer | 375-Type Hard-Tooth Surface Low-Noise Reducer |
| Screw Parameters | Φ250mm×4200mm, 40CR High-Frequency Treated, Wear-Resistant Alloy at Feeding Port |
| Barrel Parameters | Φ325mm×4200mm, 45# Steel High-Frequency Treated |
| Main Motor Power | 110KW |
| Main Machine Heating Configuration | 4 Sets Electromagnetic Heating, Total 80KW |
| Secondary Machine Heating Configuration | 3 Sets Heating Rings, Total 60KW |
| Frame Material | Integrated Welded Thickened Channel Steel |
Application Fields
This 250-type plastic pelletizing machine adapts to multi-scenario industrial plastic recycling processing. Its core application scope covers waste packaging plastic recycling granulation, plastic film/woven bag recycling processing, plastic pipe/profile scrap granulation, household appliance plastic shell waste recycling and industrial plastic defective product recycling. It widely serves plastic recycling processing factories, environmental protection recycling enterprises, plastic product factories and waste material recycling companies. The processed recycled granules can be directly used for secondary production such as injection molding, blow molding and extrusion molding to realize plastic resource recycling.
Working Process
- Raw Material Pretreatment: Crush, clean and dehydrate waste plastics and scraps via shredder to remove impurities and oil stains and guarantee raw material cleanliness.
- Constant Feeding: 22KW motor matched with 200-type thickened feeding reducer sends pretreated raw materials into the barrel constantly to avoid material blockage and breakage.
- Segmented Melting: Realize precise melting of plastic raw materials via main machine electromagnetic heating and secondary machine heating ring zoned temperature control to ensure uniform plasticization.
- Screw Extrusion: The 250mm large-diameter wear-resistant screw plasticizes raw materials at high speed, filters impurities and extrudes strip-shaped plastic melt.
- Cooling and Pelletizing: The melt is cooled and shaped via water cooling/air cooling, then cut into uniform granules by pelletizer.
- Screening and Discharging: Classify finished granules, put qualified granules into warehouse, and reprocess impurity waste materials in the machine.
FAQ
Q1: What plastic materials can the 250-type plastic pelletizing machine process?
A: This equipment adapts to the recycling processing of most general plastics, including common waste plastics such as PE polyethylene, PP polypropylene, ABS, PS and PVC. It can process raw materials in various forms such as plastic films, woven bags, pipes, shells and scraps, with stable plasticization effect and high finished granule qualification rate.
Q2: Is the equipment loud in operation and does it meet workshop environmental protection standards?
A: Equipped with a 375-type hard-tooth surface low-noise reducer with precise gear meshing and stable transmission, the operating noise is stably controlled within 75 decibels, lower than industrial production noise limit without high-frequency abnormal noise. It fully meets workshop environmental protection production standards, adapting to large-scale factory operation.
Q3: Does the equipment consume high power and what is the daily use cost?
A: Adopting electromagnetic heating plus heating ring split energy-saving system, its heat conversion rate is far higher than traditional equipment, saving about 30% comprehensive power. The high-power motor matched with high-efficiency transmission system has low power loss with stable energy consumption in long-term continuous operation. Wear-resistant accessories require low replacement frequency, leading to comprehensive use cost far lower than ordinary granulators of the same specification.
Q4: Do finished granules meet export PPWR regulation requirements?
A: Adopting high-precision plasticization and filtration process, the finished recycled granules have high purity and few impurities with recyclability ≥70%, meeting Grade C and above standards of 2030 EU PPWR market access, adapting to export recycled raw material production demands.
Author Qualification (E-E-A-T Certification)
Author: Engineer Zhang, Senior Plastic Machinery R&D Engineer, with 12 years of experience in R&D, commissioning and process optimization of plastic recycling equipment. He focuses on technical iteration of plastic pelletizing machine s and shredders, and participates in multiple national standard adaptation optimization projects for industrial plastic recycling equipment. This equipment has passed factory whole-machine load test, wear resistance life test and energy efficiency detection, holding third-party mechanical performance inspection report and environmental energy efficiency certification. The whole process complies with EU PPWR Packaging and Packaging Waste Regulation standards.
Free Consultation (CTA)
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